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Enantiopure and highly functionalized cyclohexanes may be accessed in a single step and with high stereocontrol from the 7-oxo-2-enimides 1 with use of the title reactions (see scheme). The bifunctional substrates 1 are available by a thermal [3.3]-sigmatropic rearrangement of aldol products. Xc=chiral auxiliary; M=Cu, Al.
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Schneider et al. (2000) studied this question.
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